Abstract

Test results of eight reinforced concrete continuous deep beams are reported. The main parameters considered were the shear span to depth ratio, the amount and type of web reinforcement, and the amount of the main longitudinal reinforcement. The vertical web reinforcement had more influence on the shear capacity than the horizontal web reinforcement. The failure is initiated by a major diagonal crack in the intermediate shear span between the edges of the load and intermediate support plates. Comparisons between test results and the ACI building code (318-89) show little agreement.

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